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Intangible assets (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]        
Balance at December 31, 2021 $ 2,986 $ 3,025    
Cost 4,705 4,415 $ 4,162 $ 4,087
Accumulated amortization and impairment (1,318) (1,161) (1,176) (1,062)
Addition 232 982    
Capitalized borrowing costs 6 5    
Write-offs (35) (12)    
Transfers 1 (11)    
Signature Bonuses Transfers [1] (6) (840)    
Amortization (48) (37)    
Translation adjustment 251 143    
Balance at June 30, 2022 3,387 3,254    
Impairment recognition   (1)    
Service concession rights [member]        
IfrsStatementLineItems [Line Items]        
Balance at December 31, 2021 2,523 2,695    
Cost 2,900 2,905 2,578 [2] 2,744
Accumulated amortization and impairment (62) (54) (55) [2] (49)
Addition 148 895    
Capitalized borrowing costs    
Write-offs (35) (11)    
Transfers (10)    
Signature Bonuses Transfers [1] (6) (840)    
Amortization (2) (2)    
Translation adjustment 210 124    
Balance at June 30, 2022 2,838 2,851    
Impairment recognition      
Software Licenses [Member]        
IfrsStatementLineItems [Line Items]        
Balance at December 31, 2021 439 308    
Cost 1,779 1,487 1,560 1,321
Accumulated amortization and impairment (1,256) (1,107) (1,121) (1,013)
Addition 84 87    
Capitalized borrowing costs 6 5    
Write-offs (1)    
Transfers 1 (1)    
Signature Bonuses Transfers [1]    
Amortization (46) (35)    
Translation adjustment 39 18    
Balance at June 30, 2022 $ 523 380    
Estimated useful life in years [3] 5 years      
Impairment recognition   (1)    
Goodwill [member]        
IfrsStatementLineItems [Line Items]        
Balance at December 31, 2021 $ 24 22    
Cost 26 23 $ 24 $ 22
Addition    
Capitalized borrowing costs    
Write-offs    
Transfers    
Signature Bonuses Transfers [1]    
Amortization    
Translation adjustment 2 1    
Balance at June 30, 2022 $ 26 23    
Impairment recognition      
[1] Transfers to PP&E. In 2023, it refers to the declaration of commerciality of the Manjuba field. In 2022, it relates to the Atapu and Sepia.
[2] It comprises mainly signature bonuses (amounts paid in concession contracts for oil or natural gas exploration and production sharing), in addition to public service concessions, trademarks and patents and others.
[3] Mainly composed of assets with indefinite useful lives, which are reviewed annually to determine whether events and circumstances continue to support an indefinite useful life assessment.